Documentation ¶
Overview ¶
Package glist provides most commonly used doubly linked list container which also supports concurrent-safe/unsafe switch feature.
Index ¶
- type Element
- type List
- func (l *List) Back() (e *Element)
- func (l *List) BackAll() (values []interface{})
- func (l *List) BackValue() (value interface{})
- func (l *List) Clear()
- func (l *List) Front() (e *Element)
- func (l *List) FrontAll() (values []interface{})
- func (l *List) FrontValue() (value interface{})
- func (l *List) InsertAfter(p *Element, v interface{}) (e *Element)
- func (l *List) InsertBefore(p *Element, v interface{}) (e *Element)
- func (l *List) Iterator(f func(e *Element) bool)
- func (l *List) IteratorAsc(f func(e *Element) bool)
- func (l *List) IteratorDesc(f func(e *Element) bool)
- func (l *List) Join(glue string) string
- func (l *List) Len() (length int)
- func (l *List) LockFunc(f func(list *list.List))
- func (l List) MarshalJSON() ([]byte, error)
- func (l *List) MoveAfter(e, p *Element)
- func (l *List) MoveBefore(e, p *Element)
- func (l *List) MoveToBack(e *Element)
- func (l *List) MoveToFront(e *Element)
- func (l *List) PopBack() (value interface{})
- func (l *List) PopBackAll() []interface{}
- func (l *List) PopBacks(max int) (values []interface{})
- func (l *List) PopFront() (value interface{})
- func (l *List) PopFrontAll() []interface{}
- func (l *List) PopFronts(max int) (values []interface{})
- func (l *List) PushBack(v interface{}) (e *Element)
- func (l *List) PushBackList(other *List)
- func (l *List) PushBacks(values []interface{})
- func (l *List) PushFront(v interface{}) (e *Element)
- func (l *List) PushFrontList(other *List)
- func (l *List) PushFronts(values []interface{})
- func (l *List) RLockFunc(f func(list *list.List))
- func (l *List) Remove(e *Element) (value interface{})
- func (l *List) RemoveAll()
- func (l *List) Removes(es []*Element)
- func (l *List) Size() int
- func (l *List) String() string
- func (l *List) UnmarshalJSON(b []byte) error
- func (l *List) UnmarshalValue(value interface{}) (err error)
Examples ¶
- List.Back
- List.BackAll
- List.BackValue
- List.Front
- List.FrontAll
- List.FrontValue
- List.InsertAfter
- List.InsertBefore
- List.IteratorAsc
- List.IteratorDesc
- List.Join
- List.Len
- List.LockFunc
- List.MoveAfter
- List.MoveBefore
- List.MoveToBack
- List.MoveToFront
- List.PopBack
- List.PopBackAll
- List.PopBacks
- List.PopFront
- List.PopFrontAll
- List.PopFronts
- List.PushBack
- List.PushBackList
- List.PushBacks
- List.PushFront
- List.PushFrontList
- List.PushFronts
- List.RLockFunc
- List.Remove
- List.RemoveAll
- List.Removes
- List.Size
- New
- NewFrom
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type List ¶
type List struct {
// contains filtered or unexported fields
}
List is a doubly linked list containing a concurrent-safe/unsafe switch. The switch should be set when its initialization and cannot be changed then.
func New ¶
New creates and returns a new empty doubly linked list.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/glist" ) func main() { n := 10 l := glist.New() for i := 0; i < n; i++ { l.PushBack(i) } fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.FrontAll()) fmt.Println(l.BackAll()) for i := 0; i < n; i++ { fmt.Print(l.PopFront()) } fmt.Println() fmt.Println(l.Len()) }
Output: 10 [0,1,2,3,4,5,6,7,8,9] [0 1 2 3 4 5 6 7 8 9] [9 8 7 6 5 4 3 2 1 0] 0123456789 0
func NewFrom ¶
NewFrom creates and returns a list from a copy of given slice `array`. The parameter `safe` is used to specify whether using list in concurrent-safety, which is false in default.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { n := 10 l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.FrontAll()) fmt.Println(l.BackAll()) for i := 0; i < n; i++ { fmt.Print(l.PopFront()) } fmt.Println() fmt.Println(l.Len()) }
Output: 10 [1,2,3,4,5,6,7,8,9,10] [1 2 3 4 5 6 7 8 9 10] [10 9 8 7 6 5 4 3 2 1] 12345678910 0
func (*List) Back ¶
Back returns the last element of list `l` or nil if the list is empty.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Back().Value) fmt.Println(l) e := l.Back() l.InsertBefore(e, "a") l.InsertAfter(e, 6) fmt.Println(l) }
Output: 5 [1,2,3,4,5] [1,2,3,4,a,5,6]
func (*List) BackAll ¶
func (l *List) BackAll() (values []interface{})
BackAll copies and returns values of all elements from back of `l` as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l) fmt.Println(l.BackAll()) }
Output: [1,2,3,4,5] [5 4 3 2 1]
func (*List) BackValue ¶
func (l *List) BackValue() (value interface{})
BackValue returns value of the last element of `l` or nil if the list is empty.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l) fmt.Println(l.BackValue()) }
Output: [1,2,3,4,5] 5
func (*List) Front ¶
Front returns the first element of list `l` or nil if the list is empty.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Front().Value) fmt.Println(l) e := l.Front() l.InsertBefore(e, 0) l.InsertAfter(e, "a") fmt.Println(l) }
Output: 1 [1,2,3,4,5] [0,1,a,2,3,4,5]
func (*List) FrontAll ¶
func (l *List) FrontAll() (values []interface{})
FrontAll copies and returns values of all elements from front of `l` as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l) fmt.Println(l.FrontAll()) }
Output: [1,2,3,4,5] [1 2 3 4 5]
func (*List) FrontValue ¶
func (l *List) FrontValue() (value interface{})
FrontValue returns value of the first element of `l` or nil if the list is empty.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l) fmt.Println(l.FrontValue()) }
Output: [1,2,3,4,5] 1
func (*List) InsertAfter ¶
InsertAfter inserts a new element `e` with value `v` immediately after `p` and returns `e`. If `p` is not an element of `l`, the list is not modified. The `p` must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.InsertAfter(l.Front(), "a") l.InsertAfter(l.Back(), "b") fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 7 [1,a,2,3,4,5,b]
func (*List) InsertBefore ¶
InsertBefore inserts a new element `e` with value `v` immediately before `p` and returns `e`. If `p` is not an element of `l`, the list is not modified. The `p` must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.InsertBefore(l.Front(), "a") l.InsertBefore(l.Back(), "b") fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 7 [a,1,2,3,4,b,5]
func (*List) IteratorAsc ¶
IteratorAsc iterates the list readonly in ascending order with given callback function `f`. If `f` returns true, then it continues iterating; or false to stop.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { // concurrent-safe list. l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true) // iterate reading from head using IteratorAsc. l.IteratorAsc(func(e *glist.Element) bool { fmt.Print(e.Value) return true }) }
Output: 12345678910
func (*List) IteratorDesc ¶
IteratorDesc iterates the list readonly in descending order with given callback function `f`. If `f` returns true, then it continues iterating; or false to stop.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { // concurrent-safe list. l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true) // iterate reading from tail using IteratorDesc. l.IteratorDesc(func(e *glist.Element) bool { fmt.Print(e.Value) return true }) }
Output: 10987654321
func (*List) Join ¶
Join joins list elements with a string `glue`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { var l glist.List l.PushBacks(g.Slice{"a", "b", "c", "d"}) fmt.Println(l.Join(",")) }
Output: a,b,c,d
func (*List) Len ¶
Len returns the number of elements of list `l`. The complexity is O(1).
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5}) fmt.Println(l.Len()) }
Output: 5
func (*List) LockFunc ¶
LockFunc locks writing with given callback function `f` within RWMutex.Lock.
Example ¶
package main import ( "container/list" "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { // concurrent-safe list. l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true) // iterate writing from head. l.LockFunc(func(list *list.List) { length := list.Len() if length > 0 { for i, e := 0, list.Front(); i < length; i, e = i+1, e.Next() { if e.Value == 6 { e.Value = "M" break } } } }) fmt.Println(l) }
Output: [1,2,3,4,5,M,7,8,9,10]
func (List) MarshalJSON ¶
MarshalJSON implements the interface MarshalJSON for json.Marshal.
func (*List) MoveAfter ¶
MoveAfter moves element `e` to its new position after `p`. If `e` or `p` is not an element of `l`, or `e` == `p`, the list is not modified. The element and `p` must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) // element of `l` e := l.PushFront(0) fmt.Println(l.Size()) fmt.Println(l) l.MoveAfter(e, l.Back()) fmt.Println(l.Size()) fmt.Println(l) // not element of `l` e = &glist.Element{Value: -1} l.MoveAfter(e, l.Back()) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 6 [0,1,2,3,4,5] 6 [1,2,3,4,5,0] 6 [1,2,3,4,5,0]
func (*List) MoveBefore ¶
MoveBefore moves element `e` to its new position before `p`. If `e` or `p` is not an element of `l`, or `e` == `p`, the list is not modified. The element and `p` must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) // element of `l` e := l.PushBack(6) fmt.Println(l.Size()) fmt.Println(l) l.MoveBefore(e, l.Front()) fmt.Println(l.Size()) fmt.Println(l) // not element of `l` e = &glist.Element{Value: 7} l.MoveBefore(e, l.Front()) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 6 [1,2,3,4,5,6] 6 [6,1,2,3,4,5] 6 [6,1,2,3,4,5]
func (*List) MoveToBack ¶
MoveToBack moves element `e` to the back of list `l`. If `e` is not an element of `l`, the list is not modified. The element must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) // element of `l` l.MoveToBack(l.Front()) fmt.Println(l.Size()) fmt.Println(l) // not element of `l` e := &glist.Element{Value: 0} l.MoveToBack(e) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 5 [2,3,4,5,1] 5 [2,3,4,5,1]
func (*List) MoveToFront ¶
MoveToFront moves element `e` to the front of list `l`. If `e` is not an element of `l`, the list is not modified. The element must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) // element of `l` l.MoveToFront(l.Back()) fmt.Println(l.Size()) fmt.Println(l) // not element of `l` e := &glist.Element{Value: 6} l.MoveToFront(e) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 5 [5,1,2,3,4] 5 [5,1,2,3,4]
func (*List) PopBack ¶
func (l *List) PopBack() (value interface{})
PopBack removes the element from back of `l` and returns the value of the element.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopBack()) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 5 4 [1,2,3,4]
func (*List) PopBackAll ¶
func (l *List) PopBackAll() []interface{}
PopBackAll removes all elements from back of `l` and returns values of the removed elements as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopBackAll()) fmt.Println(l.Len()) }
Output: 5 [1,2,3,4,5] [5 4 3 2 1] 0
func (*List) PopBacks ¶
PopBacks removes `max` elements from back of `l` and returns values of the removed elements as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopBacks(2)) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] [5 4] 3 [1,2,3]
func (*List) PopFront ¶
func (l *List) PopFront() (value interface{})
PopFront removes the element from front of `l` and returns the value of the element.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopFront()) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 1 4 [2,3,4,5]
func (*List) PopFrontAll ¶
func (l *List) PopFrontAll() []interface{}
PopFrontAll removes all elements from front of `l` and returns values of the removed elements as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopFrontAll()) fmt.Println(l.Len()) }
Output: 5 [1,2,3,4,5] [1 2 3 4 5] 0
func (*List) PopFronts ¶
PopFronts removes `max` elements from front of `l` and returns values of the removed elements as slice.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.PopFronts(2)) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] [1 2] 3 [3,4,5]
func (*List) PushBack ¶
PushBack inserts a new element `e` with value `v` at the back of list `l` and returns `e`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.PushBack(6) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 6 [1,2,3,4,5,6]
func (*List) PushBackList ¶
PushBackList inserts a copy of an other list at the back of list `l`. The lists `l` and `other` may be the same, but they must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) other := glist.NewFrom(g.Slice{6, 7, 8, 9, 10}) fmt.Println(other.Size()) fmt.Println(other) l.PushBackList(other) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 5 [6,7,8,9,10] 10 [1,2,3,4,5,6,7,8,9,10]
func (*List) PushBacks ¶
func (l *List) PushBacks(values []interface{})
PushBacks inserts multiple new elements with values `values` at the back of list `l`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.PushBacks(g.Slice{6, 7, 8, 9, 10}) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 10 [1,2,3,4,5,6,7,8,9,10]
func (*List) PushFront ¶
PushFront inserts a new element `e` with value `v` at the front of list `l` and returns `e`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.PushFront(0) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 6 [0,1,2,3,4,5]
func (*List) PushFrontList ¶
PushFrontList inserts a copy of an other list at the front of list `l`. The lists `l` and `other` may be the same, but they must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Size()) fmt.Println(l) other := glist.NewFrom(g.Slice{-4, -3, -2, -1, 0}) fmt.Println(other.Size()) fmt.Println(other) l.PushFrontList(other) fmt.Println(l.Size()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 5 [-4,-3,-2,-1,0] 10 [-4,-3,-2,-1,0,1,2,3,4,5]
func (*List) PushFronts ¶
func (l *List) PushFronts(values []interface{})
PushFronts inserts multiple new elements with values `values` at the front of list `l`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.PushFronts(g.Slice{0, -1, -2, -3, -4}) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 10 [-4,-3,-2,-1,0,1,2,3,4,5]
func (*List) RLockFunc ¶
RLockFunc locks reading with given callback function `f` within RWMutex.RLock.
Example ¶
package main import ( "container/list" "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { // concurrent-safe list. l := glist.NewFrom(garray.NewArrayRange(1, 10, 1).Slice(), true) // iterate reading from head. l.RLockFunc(func(list *list.List) { length := list.Len() if length > 0 { for i, e := 0, list.Front(); i < length; i, e = i+1, e.Next() { fmt.Print(e.Value) } } }) fmt.Println() // iterate reading from tail. l.RLockFunc(func(list *list.List) { length := list.Len() if length > 0 { for i, e := 0, list.Back(); i < length; i, e = i+1, e.Prev() { fmt.Print(e.Value) } } }) fmt.Println() }
Output: 12345678910 10987654321
func (*List) Remove ¶
Remove removes `e` from `l` if `e` is an element of list `l`. It returns the element value e.Value. The element must not be nil.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) fmt.Println(l.Remove(l.Front())) fmt.Println(l.Remove(l.Back())) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 1 5 3 [2,3,4]
func (*List) RemoveAll ¶
func (l *List) RemoveAll()
RemoveAll removes all elements from list `l`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.RemoveAll() fmt.Println(l.Len()) }
Output: 5 [1,2,3,4,5] 0
func (*List) Removes ¶
Removes removes multiple elements `es` from `l` if `es` are elements of list `l`.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/garray" "github.com/gogf/gf/v2/container/glist" ) func main() { l := glist.NewFrom(garray.NewArrayRange(1, 5, 1).Slice()) fmt.Println(l.Len()) fmt.Println(l) l.Removes([]*glist.Element{l.Front(), l.Back()}) fmt.Println(l.Len()) fmt.Println(l) }
Output: 5 [1,2,3,4,5] 3 [2,3,4]
func (*List) Size ¶
Size is alias of Len.
Example ¶
package main import ( "fmt" "github.com/gogf/gf/v2/container/glist" "github.com/gogf/gf/v2/frame/g" ) func main() { l := glist.NewFrom(g.Slice{1, 2, 3, 4, 5}) fmt.Println(l.Size()) }
Output: 5
func (*List) UnmarshalJSON ¶
UnmarshalJSON implements the interface UnmarshalJSON for json.Unmarshal.
func (*List) UnmarshalValue ¶
UnmarshalValue is an interface implement which sets any type of value for list.